Electronic Control
ELECTRONIC CONTROLa. REMOVAL AND INSTALLATION OF BATTERY TERMINAL
1. Before performing electronic work, disconnect the cable from the battery's negative (-) terminal to prevent component and wire damage caused by accidental short circuits.
2. When disconnecting the terminal cable, turn the ignition switch and head light dimmer switch OFF and loosen the terminal nut completely. Perform these operations without twisting or prying the terminal. Remove the battery cable from the battery post.
3. Clock settings, radio settings, audio system memory, DTCs and other data are erased when the battery cable is disconnected, write down any necessary data before disconnecting the battery cable.
b. HANDLING OF ELECTRONIC PARTS
1. Do not open the cover or case of the ECU unless absolutely necessary. If the 1C terminals are touched, the IC may be rendered inoperative by static electricity.
2. To disconnect electronic connectors, pull the connector itself, not the wires.
3. Be careful not to drop electronic components, such as sensors or relays. If they are dropped on a hard surface, they should be replaced.
4. When cleaning the engine with steam, protect the electronic components, air filter and emission-related components from water.
5. Never use an impact wrench to remove or install temperature switches or temperature sensors.